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KMID : 1812820180020020029
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Journal of Korean Dental Hygiene Science
2018 Volume.2 No. 2 p.29 ~ p.32
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Relationship of Scratch Test and Glenohumeral Internal Rotation and Horizontal Adduction Range of Motion
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Kang Min-Hyeok
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Abstract
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Background: To identify limitation of combined shoulder movements, the scratch test has been widely used in clinical settings. However, no study has examined the relationship between the scratch test and glenohumeral (GH) joint passive range of motion (PROM).
Purpose: To investigate the relationship between the scratch test and GH internal rotation (IR) and horizontal adduction (HA) PROM.
Study design: Cross-sectional study.
Methods: Twenty-four healthy subjects were recruited in this study. Bilateral GH IR and HA PROM were measured using a smartphone application in supine position with 90° of shoulder and elbow flexion. Value of the scratch test was measured using tape measures. Pearson product moment correlations were performed to identify correlation between the scratch test and GH IR and HA PROM.
Results: Significant correlation between the scratch test and GH IR PROM (p=0.004, r=?0.408 and GH HA PROM (p<0.001, r=?0.620) was revealed.
Conclusions: These findings suggest that the scratch test could be helpful as well as quick measurement to identify GH joint ROM.
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KEYWORD
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Horizontal adduction, Internal rotation, Scratch test
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